EP3974204A1 - Lasermarkierte optisch variable vorrichtung und deren herstellungsverfahren - Google Patents
Lasermarkierte optisch variable vorrichtung und deren herstellungsverfahren Download PDFInfo
- Publication number
- EP3974204A1 EP3974204A1 EP21198694.8A EP21198694A EP3974204A1 EP 3974204 A1 EP3974204 A1 EP 3974204A1 EP 21198694 A EP21198694 A EP 21198694A EP 3974204 A1 EP3974204 A1 EP 3974204A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser
- security device
- security
- substrate
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title description 7
- 230000000694 effects Effects 0.000 claims abstract description 43
- 230000001419 dependent effect Effects 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 58
- 229920000515 polycarbonate Polymers 0.000 description 12
- 239000004417 polycarbonate Substances 0.000 description 12
- 230000003287 optical effect Effects 0.000 description 10
- 238000010276 construction Methods 0.000 description 9
- 238000010147 laser engraving Methods 0.000 description 7
- 238000005286 illumination Methods 0.000 description 6
- 238000007639 printing Methods 0.000 description 5
- 239000000975 dye Substances 0.000 description 4
- 238000001459 lithography Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011162 core material Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 238000001429 visible spectrum Methods 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005234 chemical deposition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000007647 flexography Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010330 laser marking Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000003362 replicative effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/43—Marking by removal of material
- B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/41—Marking using electromagnetic radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/328—Diffraction gratings; Holograms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/342—Moiré effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/351—Translucent or partly translucent parts, e.g. windows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/267—Marking of plastic artifacts, e.g. with laser
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1847—Manufacturing methods
- G02B5/1852—Manufacturing methods using mechanical means, e.g. ruling with diamond tool, moulding
Definitions
- laser receptive film or laser engravable layers
- at least one non-laser receptive film non-laser engravable layer
- the at least one non-laser receptive film will displace the adjacent pattern to its thickness and allows for the angle-dependent Moire effect.
- Both images discussed in figure 2 are laser engraved on the card.
- the "image a1" gets laser engraved on side one and "image 2" laser engraved on side 2.
- the density of the laser beam will be high at the surface (first side) of the card leading to darker marking.
- the density will be dropped due to absorption, and the marking intensity will decrease. This leads to lighter laser engraving further down in the card at the second side (shown in faded line in figure 3 ).
- a similar process happens during laser engraving of the second image (image a2) at the second side of the card.
- the non-laser engravable layer will not be affected.
- a patterned phase diffraction grating layer may be inserted between the laser engravable layers.
- the effect is no longer uniquely rooted on the Moire effect
- the incoming partially coherent light is steered by diffraction on the phase grating regions and it may be designed to create a colour, non-reciprocal image when the window is viewed from one side, such as face-up versus bottom-up.
- the polycarbonate insert is a carrier for the UV cured image.
- the UV cured image may then be incorporated into polycarbonate security documents that contain a transparent window feature, for example to be combined with or placed between laser engraved layers, as described herein.
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Optics & Photonics (AREA)
- Credit Cards Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3094381A CA3094381A1 (en) | 2020-09-24 | 2020-09-24 | Laser marked optically variable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3974204A1 true EP3974204A1 (de) | 2022-03-30 |
Family
ID=77913047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21198694.8A Withdrawn EP3974204A1 (de) | 2020-09-24 | 2021-09-23 | Lasermarkierte optisch variable vorrichtung und deren herstellungsverfahren |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11945256B2 (de) |
| EP (1) | EP3974204A1 (de) |
| AU (1) | AU2021236444A1 (de) |
| CA (2) | CA3094381A1 (de) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4766026A (en) | 1985-10-15 | 1988-08-23 | Gao Gesellschaft Fur Automation Und Organisation Mbh | Identification card with a visible authenticity feature and a method of manufacturing said card |
| EP0353974A2 (de) | 1988-08-03 | 1990-02-07 | KENRICK & JEFFERSON LIMITED | Kopierschutz für Mehrfarben-Dokumente |
| DE4243987A1 (de) * | 1992-12-23 | 1994-06-30 | Gao Ges Automation Org | Ausweiskarte mit visuell sichtbarem Echtheitsmerkmal und Verfahren zu ihrer Herstellung |
| US6494491B1 (en) | 1998-06-26 | 2002-12-17 | Alcan Technology & Management Ltd. | Object with an optical effect |
| WO2003055684A2 (en) * | 2001-12-24 | 2003-07-10 | Digimarc Id Systems, Llc | Laser engraving methods and compositions |
| WO2005029654A2 (en) * | 2003-09-19 | 2005-03-31 | Digimarc Corporation | Increasing thermal conductivity of host polymer used with laser engraving methods and compositions |
| FR2893438A1 (fr) * | 2005-11-15 | 2007-05-18 | Gemplus Sa | Support de donnees, piece d'identite electronique et procede de securisation correspondant |
| WO2011007344A1 (fr) * | 2009-07-17 | 2011-01-20 | Arjowiggins Security | Element de securite a effet de parallaxe |
| WO2015106352A1 (en) * | 2014-01-14 | 2015-07-23 | Canadian Bank Note Company, Limited | Optically variable printed feature for security documents |
| WO2019077316A1 (en) * | 2017-10-19 | 2019-04-25 | De La Rue International Limited | SAFETY DOCUMENTS AND METHODS OF MAKING THE SAME |
| WO2020047650A1 (en) * | 2018-09-07 | 2020-03-12 | Canadian Bank Note Company, Limited | Security device for security documents |
-
2020
- 2020-09-24 CA CA3094381A patent/CA3094381A1/en not_active Abandoned
-
2021
- 2021-09-20 AU AU2021236444A patent/AU2021236444A1/en active Pending
- 2021-09-22 CA CA3131480A patent/CA3131480A1/en active Pending
- 2021-09-23 US US17/482,522 patent/US11945256B2/en active Active
- 2021-09-23 EP EP21198694.8A patent/EP3974204A1/de not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4766026A (en) | 1985-10-15 | 1988-08-23 | Gao Gesellschaft Fur Automation Und Organisation Mbh | Identification card with a visible authenticity feature and a method of manufacturing said card |
| EP0353974A2 (de) | 1988-08-03 | 1990-02-07 | KENRICK & JEFFERSON LIMITED | Kopierschutz für Mehrfarben-Dokumente |
| DE4243987A1 (de) * | 1992-12-23 | 1994-06-30 | Gao Ges Automation Org | Ausweiskarte mit visuell sichtbarem Echtheitsmerkmal und Verfahren zu ihrer Herstellung |
| US6494491B1 (en) | 1998-06-26 | 2002-12-17 | Alcan Technology & Management Ltd. | Object with an optical effect |
| WO2003055684A2 (en) * | 2001-12-24 | 2003-07-10 | Digimarc Id Systems, Llc | Laser engraving methods and compositions |
| WO2005029654A2 (en) * | 2003-09-19 | 2005-03-31 | Digimarc Corporation | Increasing thermal conductivity of host polymer used with laser engraving methods and compositions |
| FR2893438A1 (fr) * | 2005-11-15 | 2007-05-18 | Gemplus Sa | Support de donnees, piece d'identite electronique et procede de securisation correspondant |
| WO2011007344A1 (fr) * | 2009-07-17 | 2011-01-20 | Arjowiggins Security | Element de securite a effet de parallaxe |
| WO2015106352A1 (en) * | 2014-01-14 | 2015-07-23 | Canadian Bank Note Company, Limited | Optically variable printed feature for security documents |
| WO2019077316A1 (en) * | 2017-10-19 | 2019-04-25 | De La Rue International Limited | SAFETY DOCUMENTS AND METHODS OF MAKING THE SAME |
| WO2020047650A1 (en) * | 2018-09-07 | 2020-03-12 | Canadian Bank Note Company, Limited | Security device for security documents |
Also Published As
| Publication number | Publication date |
|---|---|
| US11945256B2 (en) | 2024-04-02 |
| CA3094381A1 (en) | 2022-03-24 |
| CA3131480A1 (en) | 2022-03-24 |
| US20220088958A1 (en) | 2022-03-24 |
| AU2021236444A1 (en) | 2022-04-07 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20221001 |